Disperse and cationic dyes derived from 2-( meta-and para-Aminophenyl)imidazo [4,5- b] pyridine

A series of monoazo disperse dyes has been obtained using N,N-disubstituted anilines as coupling components and diazotized 2-( m- and p-amino-phenyl)imidazo[4,5- b]pyridines as diazo components. The dyes were suitable for the dyeing of polyamide and polyester. By quaternization of the pyridine nitro...

Full description

Saved in:
Bibliographic Details
Published in:Dyes and pigments 1989, Vol.10 (2), p.97-110
Main Authors: Savarino, Piero, Viscardi, Guido, Carpignano, Rosarina, Barni, Ermanno, Ferrero, Giovanni
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A series of monoazo disperse dyes has been obtained using N,N-disubstituted anilines as coupling components and diazotized 2-( m- and p-amino-phenyl)imidazo[4,5- b]pyridines as diazo components. The dyes were suitable for the dyeing of polyamide and polyester. By quaternization of the pyridine nitrogen with methyl iodide, cationic azo dyes, suitable for the dyeing of poly acrilic fibres, were obtained. NMR and electronic absorption spectra of the dyes, dyeings, fastness properties, and colour parameters of dyed fabrics were measured and correlated with the structure of the dyes.
ISSN:0143-7208
1873-3743
DOI:10.1016/0143-7208(89)85002-8